Iran's Supreme Leader Vows 'Unforgettable Lessons' for US

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- Iran's supreme leader warned Saturday of "unforgettable lessons" if the United States continues attacking the Islamic Republic, sharpening Tehran's public posture amid the conflict.
- The supreme leader called President Trump's signature "worthless and invalid," directly repudiating the credibility of U.S. commitments.
- Tehran is suspending its commitments to the interim deal, with an Iranian negotiator announcing the pullback just hours before the supreme leader's escalation.
- The interim deal framework was effectively dismantled on two fronts within hours — diplomatic suspension by negotiators and a bellicose rejection of Trump's standing by Iran's top leader.
Why it matters: With Iran's supreme leader openly branding Trump's signature as "worthless" and Tehran's negotiators suspending the interim deal within the same day, the diplomatic channel has lost both the agreement itself and any remaining trust in U.S. commitments — leaving continued U.S. military action facing an explicit rhetorical promise of retaliation from Tehran's highest office.
